Decarbonizing device



H. BRUNEAU.

DECAHBONIZING DEVICE.

APPLICATION FILED AUG-27,1921.

Patented Oct. 25, 1921.

INVENTOR. 13m

ZZZ ATTORNEYS.

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DEGARBONIZING DEVICE.

. Specification of Letters Patent.

Application fi1ed August 27, 1921. Serial No. 496,089.

T 0 all whom it may cmwcrn:

Be it known that I, Honour: BRUNEAU, a citizen of the United States, residing at VVoonsocket, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Decarbonizing Devices, of which the following is a specification.

My invention relates to decarbonlz ng devices for use with internal combustion engines, and is particularly adapted for use upon automobiles.

The essential objects of my invent1on are the prevention of carbon accumulation within the engine cylinder and upon the valves; to furnish auxiliary humidifying means for supplying the engine manifold wlthout manual intervention; toenable observatlon of the moisture supply; and to attain these ends in a compact, convenient, durable and inexpensive structure.

To these ends essentially my invention consists in such parts and in such combinations of parts as fall withinjthe scope of the appended claims. 7 v

In the accompanying drawings which form part of this specification,

Figure 1 is a side elevation of a decarbon izer embodying my invention, V

Fig. 2, an enlarged vertical central section of the same,

F'g. 3, atransverse section on line '3 3 of Fig. 2, and

Fig. 4, a plan view of the base member.

Like reference characters indicate like parts throughout the views. 7

In its present and preferred form of embodiment my device comprises a casing having a side wall comprising an outer cylindrical section 7 and an inner section 8 connected by friction or otherwise, and which if preferred may be integral with each other. The outer section has'internal threads 9 and 10 at its top and bottom, and is provided immediately above the section 8 with an annular series of air holes 11. The bore of the section 8 constitutes a piston chamber 13 in which is slidably mounted a valve piston or plunger 14 having concentrlcally of its upper face a conical valve 15, and provided with a circular cavity 16 in its lower face. In an intermediate portion of the wall section 8 opening into the chamber 13 are an annular series of ports 18 forming a continuation of Vertical passages 19 extendlng to the end of the wall section.

The casing includes a base 20 havin a central longitudinal bore 21 and comprises a conical lower portion 22 and a reduced cylindrical upper portion 23 forming an annular shoulder 24 against which abuts the wall section 7. The thread 10 on the latter engages an external thread 26 on the base portion 23 which abuts against the end of the section 8 and supports a helical spring 27 in the piston cavity 16 pressing against the piston. Radial passages 28 in the base portion 23 registering with the passages 19 extend to the bore 21.

A cylindrical extension 30 of the base is threaded to the elbow 32 of a pipe 34 which extends into the intake manifold of an internal combustion engine above the carbureter. Included in the upper portion of the casing is a circular block or closure 37 provided with an external thread 38 engaging the thread 9 of the wall, and having in its inner end a conical cavity 39 constituting a seat for the valve 15. The outer end of the block has a circular recess 40 centrally of which is a bore 41'provided with a thread 42, and communicating with the cavity 39 through a reduced opening 43. Resting upon the block in'the recess 40'is a sight tube 46 of glass upon which rests a cap 47 whose dependingside 48'loosely embraces the tube. Packing rings 49 and 50 are in this case at the ends of the tube. The cap has a central bore 52 of enlarged diameter outwardly, as at 53, and provided at its end portion with a thread 54 adapted to engage the threaded end of a pipe 56 extending to the water jacket or other portion of the circulating system of an engine. A rod or screw 58 in the cap bore 52 has a head portion 59 in the enlargement of the bore provided with an end face groove 60. A thread 62 on its lower end engages the thread 42. The member 58 has a passage 64 extending from its upper end to its side at a point within the tube 46, and a like passage 66 extends from its lower end to its side at a point within the tube.

The operation of my device is as follows. The vapor, steam or hot water in the jacket or circulating system of the engine passes therefrom through the conductor 56, passage 64, tube 46, passage 66, opening 43 and cav- Patentetl Oct. 25, 1921. v

ity 39 into the chamber 13 where it mixes with the air entering through the holes 11. The mixture is assisted by the descent of the member 14. From this point mixed elements pass through the ports 18 and downwardly through the passages 19 and 28 and the bore 21 and through the conductor 34 to the intake manifold of the engine.

When the piston member 14 is in elevated position, as shown in broken lines in Fig. 2, the valve 15 seats in the cavity 39 and closes the opening 43 and the ports 18 and occludes the holes 11. In this elevated or closed position both the moisture and the air supply are cut off.

The member 14 is drawn down upon the base 23 in open position, as shown in full lines in Fig. 2, by the suction occasioned by the inspiratory stroke of the engine, and compresses the spring 27. When the suction stops the spring forces the member 14 upwardly into closed or normal position. When the engine is not operating the normal position of the piston prevents any access of the vapor or air to the conductor 34.

The sight tube 46 and the passages 64 and 66 enable an inspection of the movement and amount of moisture.

The construction of the member 58 and the members 47 and 37 assist disassembling of the parts, and this is further assisted by the opposite flat faces 68 of the cap. The threaded connections of the parts 37 7, and 22 also facilitate assemblage and disassemblage of the parts.

It will be noted that the operation of my device is exclusively automatic and no manually controlled elements are required in my device lncludmgits engine connections.

It is obvlous that many changes in details of constructionwithin the spirit of my invention may be made. The description of the device has been given in detail merely for clearness of understanding, and no undue limitation should be understood therefrom.

. I claim 1. In a decarbonizing device, a casing wall inclo'sing a piston chamber and provided with air holes near one end and with ports adjacent the holes extending to the other end of the wall, a closure member in the wall adjacent the holes provided with a valve seat and with a moisture opening communicating with the seat, a closure member in the other end of the casing wall provided with a suction opening, and with passages extending from the ports to the opening, a piston in the chamber movable across the ports, a valve on the piston registerable in the valve seat, and a spring on the second closure engaging the piston.

2. In a decarbonizing device, a casing wall inclosing a piston chamber and provided with air holes near one end, a closure member fast to one end of the wall adjacent the holes provided with a valve seat, an opening from the seat, and a threaded bore extending to the opening, a sight tube resting on the closure, a cap on the tube provided with a central bore, a moisture pipe on the cap communicating with, the central bore, a screw in the central bore traversing the sight tube and engaging in the threaded bore, said screw being provided with a pas sage extending from the moisture pipe to a point within the tube and from a point within the tube to the opening in the closure,

a closure fast to the other end of the tube pro- H vided with a suctionopening, a piston in the piston chamber, avalve on the piston, and a spring engaging the piston and the second closure. V

In testimony whereof I have afiixed my signature.

V HUDGER BRUNEAU. 

